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WINDOW SASH.

Patented May 12, 1885..

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WINDOW SASH.

Patented May 12, 1885.

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WINDOW SASH. No. 317,659. Patented May 12,1885.

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lUNiTED STATES PATENT OrrioE. v

EMIL ROBERT MAYER, OF NEW YORK, N. Y.

WINDOW-SASH.

SPECIFICATION forming part of Letters Patent No. 317,659, dated May 12, 1885.

' Application filed December 12, 1884. (No model.)

To all whom it may concern:

Be it known that I, EMIL R. MAYER, of the city, county, and State of New York, have in vented certain new and useful Improvements in Window-Sashes, of which the following is a specification.

This invention has reference to certain improvements in windowsashes of that class which can be sprung inwardly into the room for more convenient cleaning; and the invention consists of a window-sash that is pro-.

vided at its vertical sides with metallic straps that are attached by straps to the upper and lower rails of the sash. The vertical strap at one side of the sash is hinged to a rail that is guided by laterally extending lugs in grooves of the stop and parting beads of the windowcasing, while the strap at the opposite side of the sash is locked by suitable locking devices to a similar guide-rail at the opposite side of the casing. A pivoted stop set into a recess of the window casing serves to arrest the guide-rail in position when the sash has been moved into open position.

In the accompanying drawings, Figure 1 represents a front elevation of a window with Fig. 2 is a horizontal section of the window casing, showing a top view of both sashes. Fig. 3 is a front view of the lower sash opened and its locking mechanism. Fig. 3 is a vertical transverse section of the locking mechanism of the sash. Fig. 4 is a horizontal section of the same, showing the lower sash opened and the upper sash ready to be opened. Figs: 5 and 6 are detail top views of the connection of the hinged sash with the guide-strip, showing it in closed and partly-open position; and Fig. 7 shows a detail end view and a vertical transverse section of Fig. 5.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents a window-sash the vertical sides of which are made of less width than usual, and provided with metallic side straps,a a,of angular crosssection. The side straps, or a, are screwed to the side rails of the sash, and furthermore secured thereto by corner straps,b b, which are attached to the top and bottom rails and to the side straps a a of the sash. The corner straps b b have the additional advantage of rails B B, together with the sashes, are equal to the width and size of the ordinary sashes in use. The guide-rails B B are made either of wood and reenforced with iron plates or of cast-iron or other suitable material, according to the size of the window-sash. For large sizes of window-sashes it is preferable to use wood and metal, so as to decrease the weight of the same. vided with laterally extending lugs d d, that are guided in grooves 11 of the stop and parting beads d d of the windowcasing. The lugs dd prevent the inward tilting of the guiderails B B when the hinged sash is thrown into open position. The usual balance cords are attached to the guide-rails of the sashes.

The locking device by which the sash A is locked to the guide-rails B consists of hooks e of the side strap a, which are engaged by a spring-actuated slide-bolt, e, that is raised or lowered by means of a key or countersunk thumb-pieces,e ,after thehooks eehave passed through slots 6 to the interior of the guiderail B, as shown in Figs. 3 and 3.

To the face of the guiderail B are attached band-springs e, which press by their free ends against the side strap a, of the sash A, so as to readily open thesame when the locking device is released.

The guide rails B B are pro- Any suitable locking mechanism. may be used, as I do not confine myself to the special construction shown. The re-enforcing straps b b of the top and bottom rails of the sash A project over the ends of the side straps, a a, and over the top and bottom recesses,b,of the guide-rails B B, as shown in Fig. 8, so that a rigid connection between the sash A and its guide-rails B B is obtained when the former is in closed position, as shown clearlyin Figs. 5, 6, and 7. A spring-stop, O, is pivoted into a recess of the windowcasing immediately above the upper end of the guide-rails B, and adapted to be moved in outward direction, so as to arrest the guide-rail B and prevent it from being pulled up by the balance-weight when the sash is to be opened.

For cleaning the lower sash, it is released from the guide rail B, turned on the hinges of the guide-rail B into the room, as shown in Fig. 4, and then cleaned at both sides. The upper sash is then lowered and the guide-rail B of the lower sash allowed to move up by pushing the stop 0 into its recess so that it clears the rail B. The upper sash is then opened to the inside of the room in the same manner as the lower sash, and cleaned at both sides with great facility. The guiderail B of the upper sash is retained during the cleaning operation by the stop 0. The upper sash is then closed again and locked to its guide-rail B, after which the sash is raised again. The lower sash is next closed and locked to its side rail B, which has first been pulled down and held in position by its stop 0. The stop G is then pushed back into the recess of the casing, after which the sashes can be used in the same manner as the ordinary sashes in general use.

My improved construction can be applied to the sashes in common use by simply decreasing the width of the side rails of the sashframe and attaching thereto the side straps, a a, and the re-enforcing top and bottom straps, b b. When this is accomplished, the sashes are hinged to the guide-railsB and locked to the guide-rails B, as described.

It is obvious that the weight of the balanceweights has to be increased proportionately, so as to properly counterbalance the weight added to the sash by the straps and guide-rails.

My improved sash construction has the advantage that it facilitates the cleaning of the sashes without bending outside of the window, and that the attachments can be applied to old or new sashes with but little alteration in the construction of the sash and window-casing,

and without weakening the sash-frame in the least.

Having thus described my invention, I claim as new, and desire to secure by LettersPatent- 1. The combination of a window-casing having grooved stop and parting beads, guide-rails having lugs extending into the grooves of the beads, a window sash having side straps and re-enforcing top and bottom straps, said sash being hinged to one guide-rail and adapted to be locked to the other, substantially as set forth.

2. The combination of a window-casing having grooved stop and parting beads, guide-rails having lugs extending into the grooves of the beads, a window-sash having side straps and re-enforcing top and bottom straps, the latter projecting over the side straps and into recesses of the top and bottom recesses of the guide rails, hinges to connect the sash with one guide-rail, and a locking device to attach the sash to the other guide-rail, substantially as set forth.

3. The combination of a window-easing having grooved beads, guide-rails having lugs extending into the grooves of said beads, sashes hinged to guide-rails at one end and adapted to be locked to guide-rails at the opposite end, and stops fulcrumed into recesses of the window-casing above the guide-rails, so as to retain them in position when opening the sashes, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

EMIL ROBERT MAYER.

Witn esses PAUL GonrEL, SIDNEY MANN. 

